"Hakol (the voice) is the voice
of Yaakov, the hands are the hand of Esav" (27:22).

The word 'hakol' may also be read 'hakal' meaning
light or weak. This hints that when the voice of Yaakov (his
Torah learning and his prayer) is weak, then the hand of Esav
will gain control.Vilna Gaon

These wells symbolize the three Temples that would one day
stand in Jerusalem. The first two wells were destroyed by the
Philistines. Similarly, the first two Temples were destroyed.
The third well, Rehovot, endured, as will our third Temple.